// PR c++/87410 | |
// { dg-do compile { target c++14 } } | |
template <long a> using b = const char[a]; | |
template <typename, int c, int e, typename f> | |
constexpr auto g(b<c> &, b<e> &, f) {} | |
template <typename d, int a> auto h(b<a> &) { | |
auto i = j(static_cast<d **>(nullptr)); | |
return **i; | |
} | |
class k { | |
using l = k; | |
const int &m() const; | |
friend constexpr auto j(l **n) -> decltype(n) { | |
g<int>("", "", static_cast<const int &(k::*)() const>(&k::m)); | |
return n; | |
} | |
}; | |
k o = h<k, 1>(""); |